Potassium Carbonate → (3R)-1-[1-(4-Bromophenyl)ethyl]-7-cyclohexyl-3-hydroxy-1,7-diazaspiro[4.4]-nonan-6-one

Participants

Reaction Conditions

Reaction Steps

A mixture of (3R)-7-cyclohexyl-3-hydroxy-1,7-diazaspiro[4.4]nonan-6-one (0.030 g, 0.00012 mol; which was prepared by using procedures analogous to those described for the synthesis of Example 32, derived from peak 2 of step 2), 1-(4-bromophenyl)ethyl methanesulfonate (0.053 g, 0.00019 mol) and potassium carbonate (0.035 g, 0.00025 mol) in dimethylsulfonamide (DMSO) (1.0 mL, 0.014 mol) was stirred at 100° C. for 16 h. The crude reaction mixture was purified by prep. HPLC to afford the desired product. LC-MS: 421.0/423.0 (M+1H)+.

Provenance & Evidence